23110729 has 2 divisors, whose sum is σ = 23110730. Its totient is φ = 23110728.

The previous prime is 23110723. The next prime is 23110741. The reversal of 23110729 is 92701132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19316025 + 3794704 = 4395^2 + 1948^2 .

It is a cyclic number.

It is not a de Polignac number, because 23110729 - 2⁵ = 23110697 is a prime.

It is a super-2 number, since 2×23110729² = 1068211589822882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23110723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11555364 + 11555365.

It is an arithmetic number, because the mean of its divisors is an integer number (11555365).

Almost surely, 2^23110729 is an apocalyptic number.

It is an amenable number.

23110729 is a deficient number, since it is larger than the sum of its proper divisors (1).

23110729 is an equidigital number, since it uses as much as digits as its factorization.

23110729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 23110729 is about 4807.3619584966. The cubic root of 23110729 is about 284.8423422677.

The spelling of 23110729 in words is "twenty-three million, one hundred ten thousand, seven hundred twenty-nine".